Mold and mold-hoisting apparatus for building concrete walls



(No Model.)

T. WQGARRIGO. MOLD AND MOLD HOISTING APPARATUS FOR BUILDING CONCRETEWALLS.

N0. 30mm.

Patented July 8, 1884.

WITNESSES; 2

INVENTOR (/w/ga ATTORNEYS.

UNITED STATES PATENT FFICE.

THOMAS WILLSON OARRICO, OF SAN ANTONIO, TEXAS.

MOLD AND MQLD-HOISTING APPARAIUS FOR BUlLDlNG CONCRETE WALLS.

SPECIFICATION forming part of Letters Patent No. 301,671, dated July 8,1884.

' Application filed April 12, 1884. (No model.)

' 10 all whom it may concern- RICO, of San Antonio, in the county ofBexar and State of Texas, have invented a new and Improved Mold andMold-Hoisting Apparatus for Building Concrete Walls, of which thefollowing is a full, clear, and exact description.

The object of this invention is to provide devices for use in theconstruction of concrete walls, by means of which such walls can bequickly and easily built up.

The invention consists in a mold in which a course of the wall can beformed, and in devices for raising the mold for the formation of anothercourse. 4

, The invention also consists in details of construction and incombinations of parts, as will be hereinafter more particularly setforth.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similarletters of reference indicatecorresponding parts in all the figures.

Figure l is a perspective view of a mold for the construction ofconcrete walls and the hoisting devices, in part made according to myinvention, parts being broken out and others shown in section. Fig. 2 isa cross-section of the same on the lineman in Fig. 1. Figs. 3 and 4 aredetails of the hoisting devices.

I take pieces of plank A A for the sides of the mold, of suitable widthand thickness and of a convenient length. Between these sides A A, attheir bottom edges, I place gage-pieces B, of alength equal to thedesired thickness of the wall to be built. Through. corresponding holes,a, in the side plank, A, I then pass bolts 0, the said bolts havingwinged nuts 0 upon one end, and washers a being placed beneath the nutsand heads of the bolts to bear against the sides A. Across the upperedges of the plank or sides A, I place gage-sticks D, having notches dto fit over the edges of the plank A. I then tighten up the nutsc,whereby the mold is firmly clamped together. These gage pieces, bolts,and gage-sticks I place about three feet apart. The mold is then readyto be filled with concrete, .E, of broken stone and grouting well mixedand solidly packed into themold. I-Iavingfilled the molds, as above, andthereby formed one course of the wall, the next step is to raise themolds for another course. For this purpose I provide upon the outerupper edges of the plank A clevises F, bolted firmly thereto. These clevises are to be at a suitable distance apart. Through these clevises Ipass beams G, having a portion at their outer ends rounded upon theupper surface at 5/, to fit into the clevises F. Two holes are bored ineach end of these beams, so that. the ends of bolts 6, passed throughthe holes nearest the ends, will be a little distance from the outersides of the plank A, and so that boltsf, passed through the innerholes, will be close to the inner sides of the plank A.

, At points in the length of the wall corre' sponding to the positionsof the clcvises F, I erect frames, consisting of posts I and crosspiecesJ, the posts I being set far enough from the wall for convenience inworking, and these frames being enough higher than the proposed wall toallow raising the molds to the requisite height. At the center of thecross-piece J, I suspend, by a strap, K, a pulley or other tackle, L,through which a rope, M, having one end attached to a strap, N, at thecenter of the beam G, passes.

To raise the mold, the bolts 0 are removed, the beams G are put in placeand secured in the clevises F, and the ropes M rove. Then by drawingupon the said ropes the first effect is to swing the plank A clear ofthe finished portion of the wall; then by further drawing upon the ropesthe planks are to be raised until the bolts 0 can be passed through theholes a, so asto be abovethe finished course of. the wall. The pieces Band gagesticks G are then put in place and the nuts 0 tightened, up asat first. Another course of the wall can then be made.

It will be understood that these molds will extend the length of thewall, or around the walls of the building.

Viith these molds concrete walls can be quickly and easily built.

After a sufficient quantity of concrete has beenpacked in the molds toprevent the side pieces, A,fro1n moving inward, the gage-pieces B can beremoved and the spaces left filled with concrete, whereby one set ofgagepieces will answer for the whole wall, and therewill be no wood leftin the wall.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a mold for building concrete walls, the

the beam G, having bolt-holes at the ends and provided with a strap, N,at the center, the bolts 6 f, the frame I J, the block L, suspended fromthe frame I J, and the rope M,

substantially as shown and described, and for the purposes set forth.

THOMAS WILLSON oARRIoo.

\Vitnesses:

JULIUs TEUGG, THOMAS E. STEVENS.

